Retracted Article: Study of 1550nm Erbium Glass Laser Fractional non-ablative treatment of photoaging: comparative clinical effects, histopathology, electron microscopy and immunohistochemistry.

Statement of RetractionWe, the Editors and Publisher of the have retracted the following article:Regia Celli Patriota de Sica, Consuelo J. Rodrigues, Durvanei Augusto Maria & Luís Carlos Cucé (2016) Study of 1550nm Erbium Glass Laser Fractional non-ablative treatment of photoaging: Comparative clinical effects, histopathology, electron microscopy and immunohistochemistry, Journal of Cosmetic and Laser Therapy, DOI: 10.1080/14764172.

Study of 1550-nm Erbium glass laser fractional non-ablative treatment of photoaging: Comparative clinical effects, histopathology, electron microscopy, and immunohistochemistry.

Background: Non-ablative fractional lasers have been effectively used in skin rejuvenation.

Objectives: This study evaluates the efficacy of 1550-nm Erbium glass laser for facial rejuvenation through the correlation of clinical evaluation and histopathology, immunohistochemistry, and electron microscopy analysis.

Methods: Fifteen subjects (average age: 56.

The influence of the amount of sunscreen applied and its sun protection factor (SPF): evaluation of two sunscreens including the same ingredients at different concentrations.

Background: To estimate labeled sun protection factor (SPF) for sunscreen, the amount of product applied on volunteers, according to food and drug administration (FDA) and International protocols, is 2 mg/cm(2). However, different studies have shown that consumers actually apply much less product when exposed to the sun. Previous studies have reported contradictory findings in an attempt to correlate the amount applied in relation to SPF.